Niels georg sorensen



("No Model.)

N. G. SURENSENY LOOK HANDLE.

ggganted Sept. 23, 1890.

a F g UNITED STATES I PATENT OFFICE.

NIELS GEORG SORENSEN, OF STOCKHOLM, SWEDEN.

LOCK-HAN DLE.

SPECIFICATION forming part of Letters Patent No. 137,007, dated September 23, 1890.

Application filed January 4, 1890. Serial No. 335,912. (No model.)

Be it known that I, NIELS GEORG SOREN-- SEN, a subject of the King of Sweden, residing at Stockholm, Sweden, have invented certain Improvements in Lock-Handles, of which the following is a specification.

My invention relates to a handle for door and other locks, wherein the movable handle of the ordinary lock is replaced by a fixed handle carrying a moving projecting lever or trigger, whereby when the handle is grasped this trigger is pressed into a recess or cavity formed in the stationary knob to receive it and communicates its movement to the latch-bolt, which is thereby disengaged from its socket.

'My improved handle is adapted to looks of all descriptions, but particularly to the lock shown and claimed in my pending application, Serial No. 299,967, in which the bolt is actuated solely by its own weight.

In order that my invention may be fully.

understood, I will now describe it, with reference to the accompanying drawings, where- 1n Figure l is a side elevation of one embodiment of my invent-ion, showing my improved handle applied to a door-lock, the door being in section. Fig. 2 is a front or face view of the handle seen in Fig. 1, and Fig. 3 is a vertical mid-section of the same. Fig. 4 is a horizontal section of the same, taken in the plane indicated by line 4 4 in Fig. 1; and Fig.

5 is a detached section on line 5 5 in Fig. 2.

Fig. 6 is a sectional view similar to Fig. 3,

illustrating a slightly modified form of the such as that of my before-,mentioned applica- 'tion, a is the metallic base-plate or escutcheon of the handle, which is provided with screw-holes 0/, whereby it may be secured to the door. From the outer face of this plate a rises a tubular pillar or stem 1), preferably rectangular in cross-section, as. represented in Fig. 2. Atits outer end this stemb branches at a right angle, the branch 1) thereof being circular in cross-section and also tubular. From the upper face of this branch b, at or near the outer end thereof, projectsaslender spindle it, provided with screw-threads at its upper end and adapted to receive the knob or handle proper i, which has a longitudinal channel to receive it. The spindle h is preferably square or angular in cross-section and the channel in knobz' is cut to conform thereto to admit of the said knob being properly set thereon. This knob 71 may be of any suitable material, as bronze, glass, porcelain, &c., and may have any form. The knob & is secured to the spindle by means of a screw-cap h, which screws over the threads on the upper end t-hereof,'the knob being recessed to receive it. v

Extending lengthwise through the branch b is a slender screw or headed bolt 0, which when in place forms the pivot-center for the moving parts. The end of this boltc is screwthreaded and screws into the wall of the branch I) at the end thereof, as clearly seen in Fig. 4. Over the bolt 0 is slipped a tubular shaft or sleeve d, the outer end of which bears alever g, which I will call the trigger. This trigger passes through an opening in the upper face of the branch I) and the knob 11, which is recessed at its back to receive the same when the latter is pressed in. On the oppo site end of the hollow shaft d is fixed a lever f, which projects, through the hollow stem b into the lock-casing and takes under the outer end of the latch-bolt, as will be readily understood.

Now when the knob t is grasped with the hand sufficient pressure will be exerted on the trigger g to press the same into its recess in the rear or back face of the knob 1', thereby imparting a partial rotation to the tubular shaft (1 and raising the outer or free end of lever f, on which rests the latchbolt. This raising of the latch-bolt will disengage it from its socket, and the door may then be opened, as willbe readily understood. On releasing the knob the parts may be retracted by gravity, or a spring may be employed for this purpose, if thought necessary. The construction illustrated in Fig. 6 is the same as that just described, except that the trigger g is pivoted in the knob & and engages a dog g at its lower end, which dog is fixed on the end of shaft (1. In order that this device may operate to raise the latch-bolt, it is necessary that the trigger shall beset in the front or face of knob i,whichishere represented as integral with the branch I).

In Figs. 7 and 8 I have shown another form of my improved handle adapted for springlocks. I11 this construction the trigger projects from an opening in the uppersurface of a fixed knob i, which is formed integrally with the hollow stem b, which is substantially the same as the branch I) of Fig. 3, the stem 1) being omitted from this construction. The trigger g is fixed on the outer end of a tubular shaft (1, which passes through the door and receives a second trigger at its opposite end, whereby the bolt is operated from the other side of the door. A slender screw or bolt 0 extends through the door and both handles and forms the pivot or center for the shaft (1, taking the place of the ordinary knob-spindle. This bolt or stationary spindle c, with its sleeve (1, will by preference pass through the door immediately under the bolt, and has of course properbearingsin the outer faces of handles Z). Upon this shaft (1, at its middle portion or under the latch-bolt X, is fixed a lever f, bent as seen in dotted lines in Fig. 8, the end of which takes between collars on the inner end of the bolt X, whereby when the shaft 61 is rotated by the grasping of knob i by the hand the lever f is thrown backward, withdrawing the bolt from its socket in the jamb of the door. In this case the parts are retracted by a spring about the bolt. (Seen in Fig.8 in dotted lines.)

The object of providing the branch L, as illustrated in Fig. 2, and of mounting the handle horizontally, as seen in Fig. '7, is to provide space for grasping the knob properly with the hand,theconstructionsprovidingsufficient room for this in the case of doors with narrow rails, where, if double doors, the handles would be ineonveniently close together, or, if a single door, to the door-jamb.

It is obvious that the constructions illustrated in Figs. 3 and 7 are the same, except as to some slight variation in the form of the parts and the manner of mounting them in the casing. Indeed, for all purposes the c011- struction seen in Fig. is the equivalent of that of Fig. 7, with the stem 1) added and the whole turned about.

I do not of course limit myself to the precise constructions and arrangements herein shown, as these may be changed to some extent.

IIaving thus described my invention, I claim-- 1. I11 a handle for locks, latches, &c., the combination, with the casing, of a pivotal bolt orshaft fixed therein, a sleeve or tubular shaft mounted on said fixed shaft, said sleeve hearing a trigger at its outer end and provided at its opposite end with a lever projecting through the lock-casing and engaging the latch-bolt, whereby pressure on said trigger operates to rotate said sleeve and through said lever thereon to disengage the latch-bolt from its socket.

2. In a handle for looks, latches, &c., the combination, with the casing comprising a hollow stem and a fixed knob or handle proper, of a pivotal bolt or shaft fixed in said casin g, a sleeve or tubular shaft mounted on said fixed shaft, said sleeve bearing a trigger projecting through the casing beside the fixed knob thereof and provided at its opposite end with a lever projecting through the lock-casing and engaging the latch-bolt, whereby the grasp of the hand 011 the fixed knob and the trigger presses the said trigger up to said knob, rotates said sleeve, and through the lever thereon disengages the latch-bolt from its socket.

3. In a handle for looks, latches, &c., the combination, with the casing comprising the hollow stem b, the branch 1), extending there from, and the recessed knob t' on said branch, of a pivotal belt or shaft 0, fixed in said branch I), the sleeve or tubular shaft d, mounted on said shaft 0 and bearing at its one end the trigger projecting through the casing in front of the recess in the knob to which it is adapted to conform, and at its opposite end the lever f, extending through the tubular stem 11 into the lock-casing and engaging the latch-bolt at its free end, whereby the grasp of the hand on knob 71 and trigger g presses said trigger into the recess in said knob, rotates the sleeve d, and through the lever f disengages the latch-bolt from its socket.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.

NIELS GEORG SORENSEN. lVitnesses:

Nnnn A. ELFWING, Enns'r SvANovIs'r. 

